Designing tactile feedback for piezo buttons

Authors:
Jani Lylykangas;Veikko Surakka;Katri Salminen;Jukka Raisamo;Pauli Laitinen;Kasper Rönning;Roope Raisamo
Affiliations:
University of Tampere, Tampere, Finland;University of Tampere, Tampere, Finland;University of Tampere, Tampere, Finland;University of Tampere, Tampere, Finland;Aito Interactive Inc., Espoo, Finland;Aito Interactive Inc., Espoo, Finland;University of Tampere, Tampere, Finland
Venue:
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Year:
2011

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Abstract

The present aim was to study the preference of tactile feedback stimulations given by non-physical (i.e., solid) piezo-actuated buttons. Participants (n=16) ranked 16 different tactile feedback stimuli varied by 4 output delays and 4 vibration durations. The results showed that the mean ranks of the stimuli differed significantly from each other. The timing parameters of delay and duration interacted with each other, for example, so that preference of certain vibration duration fluctuated in response to different output delays. Using a very short time window (i.e., 10-453 ms) combining both delay and duration parameters of the feedback could result either in favorable or significantly less favorable subjective experience. The results suggest that a preferred perception of tactile feedback from non-physical buttons requires careful design and controlling of the timing parameters.